Fail resource-based methods for next resources (#1453)

* Fail resource based methods on v2 resources

* remove extra line

* rubocop

examples/meter_event_stream.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "stripe"
 require "date"
 

examples/new_example.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "stripe"
 require "date"
 
@@ -17,7 +19,6 @@ end
 
 # Send meter events
 api_key = "{{API_KEY}}"
-customer_id = "{{CUSTOMER_ID}}"
 
 example = NewExample.new(api_key)
 example.do_something_great

lib/stripe/api_resource.rb

@@ -25,6 +25,12 @@ module Stripe
     end
 
     def self.resource_url
+      if name.include?("Stripe::V2")
+        raise NotImplementedError,
+              "V2 resources do not have a defined URL. Please use the StripeClient " \
+              "to make V2 requests"
+      end
+
       if self == APIResource
         raise NotImplementedError,
               "APIResource is an abstract class. You should perform actions " \
@@ -86,12 +92,21 @@ module Stripe
       "#{self.class.resource_url}/#{CGI.escape(id)}"
     end
 
-    # TODO: v2 objects can be refreshed -- the api mode should depend on the object here.
     def refresh
+      if self.class.name.include?("Stripe::V2")
+        raise NotImplementedError,
+              "It is not possible to refresh v2 objects. Please retrieve the object using the StripeClient instead."
+      end
+
       @requestor.execute_request_initialize_from(:get, resource_url, :api, self, params: @retrieve_params)
     end
 
     def self.retrieve(id, opts = {})
+      if name.include?("Stripe::V2")
+        raise NotImplementedError,
+              "It is not possible to retrieve v2 objects on the resource. Please use the StripeClient instead."
+      end
+
       opts = Util.normalize_opts(opts)
       instance = new(id, opts)
       instance.refresh

test/stripe/api_resource_test.rb

@@ -894,6 +894,31 @@ module Stripe
       end
     end
 
+    context "v2 resources" do
+      should "raise an NotImplementedError on resource_url" do
+        assert_raises NotImplementedError do
+          Stripe::V2::Event.resource_url
+        end
+      end
+
+      should "raise an NotImplementedError on retrieve" do
+        assert_raises NotImplementedError do
+          Stripe::V2::Event.retrieve("acct_123")
+        end
+      end
+
+      should "raise an NotImplementedError on refresh" do
+        stub_request(:post, "#{Stripe::DEFAULT_API_BASE}/v2/billing/meter_event_session")
+          .to_return(body: JSON.generate(object: "billing.meter_event_session"))
+
+        client = Stripe::StripeClient.new("sk_test_123")
+        session = client.v2.billing.meter_event_session.create
+        assert_raises NotImplementedError do
+          session.refresh
+        end
+      end
+    end
+
     @@fixtures = {} # rubocop:disable Style/ClassVars
     setup do
       if @@fixtures.empty?